Harvard University

sur 500~20000

168

C'est un succès ou un échec. mais persévérance féroce

3

192.0.66.20

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TrendingNewsStories News Readmorenews Findingrightmixoncampusspeechpolicies Legal,politicalscholarsdiscussbalancingpersonalsafety,constitutionalrights,academicfreedomamidroilingprotests,culturalshifts CollegeseesstrongyieldforstudentsacceptedtoClassof2028   Financialaidwasacriticalfactor,deansays Goodgenesarenice,butjoyisbetter Harvardstudy,almost80yearsold,hasprovedthatembracingcommunityhelpsuslivelonger,andbehappier SignupfortheDailyGazette NigationQuickLinks AtoZindexFindaPersonEventsMediaRelationsAlumniGiveNowEmergency HarvardUniversity Close HarvardUniversity TheSenses Oursenseshelpusexperiencetheworldaroundus.Harvardresearchersareworkingtounderstand,improve,andreplicatethesesensoryorgans. Theinsandouts Theactofsensingstartswithstimulusfromtheworld,whichtriggersaphysiologicalresponse,whichiscombinedwithpreviousexperiences,whichresultsinaninternalrepresentation,whichisourbrain’sbestguessatwhat’sgoingonaroundus. LearnmoreaboutsensesfromthHarvard UniversityeHarvardMedicalSchool Howthebraininteractswiththeworld Howwesmell,hear,andseethroughpsychophysics Howsensoryexperiencesshapeagrowingbrain HowHarvardaccommodatesallsenseabilities Eyeofthebeholder Visionissomuchmorethanmeetstheeye.Byabsorbingandassigningcolorstoasmallpieceoftheelectromneticspectrum,wecandiscoverbeauty,danger,andopportunitiesallaroundus. Makingsenseofhowpeoplewhoareblind‘see’color Harvardresearchershefoundthatdespiteexperiencingcolordifferently,bothblindandsightedpeopleshareacommonunderstandingoftheconcept. Learnhowthebraininterpretscolors Demystifyingdyslexia NeurologistAlbertGalaburdadiscusseswhatbraincluesandneurodiversityrevealaboutreadingchallenges. ReadmoreaboutAlbert8217;sresearch ReadmoreaboutAlbert8217;sresearch Pursuinggenetherapyforprogressiveblindness HarvardresearchersstudyingUshersyndrometype1fareexploringthreedifferentoptionsforrestoringvisioninthoseaffected. Explorethepotentialtreatments Explorethepotentialtreatments Howcommonisfaceblindness? Theinabilitytodistinguishbetweenfaces,orprosopnosia,mayimpactmorepeoplethanpreviouslythought. Learnmoreaboutthisdebilitatingcondition Learnmoreaboutthisdebilitatingcondition   HummingbirdsensesUnlikemanybirds,whichhenotastereceptorsforsweetness,hummingbirdsevolvedtodetectsweetnessnearlyasfastasabeatoftheirwings.   Thetouch,thefeel Ifyou8217;veeverbeencuriousabouthowthebodyexperiencescold,heat,pain,andpleasure,touchresearchmayhelpscratchthatitch. Explorehowwe8220;feel8221;what’shappeninginsideourbodies Touchismuchmorethanjustconsciousperceptionofwhatyouareactivelyreachingouttofeel,orwhatistouchingyourskin.” ProfessorofNeurobiologyDidGinty Learnmoreaboutthescienceoftouch Whyarecertainbodypartssosensitive? Readmoreabouttheconnectionbetweensensoryneuronsandthebrain Readmoreabouttheconnectionbetweensensoryneuronsandthebrain Howcanwetreattactilehypersensitivity? Learnmoreabouttouchsensitivity Learnmoreabouttouchsensitivity Cantouchinfluencejudgments? Explorehowanobject8217;sfeelcaninfluencehowwethinkaboutit Explorehowanobject821Harvard University7;sfeelcaninfluencehowwethinkaboutit Whatcausesitch ClicktoPlayVideo There8217;stherub Harvardresearchersareexploringthecausesandpossiblesolutionstoitchyskins,includingpoisonivy’smolecularpathinthebodyandacommonskinbacterium—Staphylococcusaureus—whichcancauseitchbyactingdirectlyonnervecells.   MneticsensesAfamilyoflight-sensitiveproteinscalledcryptochromes,locatedintheretinasofanimalslikefish,amphibians,andbirds,maybeacluetouncoveringhowtheseanimals8220;see8221;theEarth8217;smneticfield.   Soundsgood Hearing,likethesenseoftouch,involvesdetectingthemovementofmoleculesintheworldoutsideourselves.Thoseoutsidevibrationsbecomeinternalsignals,whichcancombineintoconversationsororchestrations. Agene-therapybreakthroughhasgivenchildrenborndeaftheabilitytohear Thediscoverymayyieldfuturetreatmentsforthe30millionkidswithgenetichearingloss. Discovermoreaboutthetreatmentmethod Researchershediscoveredtheproteinthatmayberesponsibleforhearingandbalance A2018studyconcludesthatTMC1isthecriticalmolecularsensorthatconvertssoundandmotionintoelectricalsignalsthebraincanunderstand. Learnmoreaboutthesensorprotein Takingastanceonsensorydisorders HarvardresearcherDivyaChari039;sworkaimstoincreaseawarenessofandeasethedinosingofvestibulardisorders. LearnaboutDivya039;sresearch   OctopussensesHarvardscientistsheidentifiedanovelfamilyofsensorsinthefirstlayerofcellsinsidethesuctioncupsofoctopustentaclesthatheadaptedtoreactanddetectmoleculesthatdon’tdissolvewellinwater,whichmayhelpthemfigureoutwhatit’stouchingandwhetherthatobjectisprey.   Smell-O-Vision Odorstakeadirectroutetothelimbicsystemwhichisinvolvedwithemotionandmemory,whichiswhyoftenthenoseknowsbeforeourothersensescancatchup. Thescienceofsniffing Learnhowscent,emotion,andmemoryareintertwined. Exploretheolfactoryfindings Exploretheolfactoryfindings Exploringtheosmocosm HaroldMcGee,authorof“NoseDive:AFieldGuidetotheWorld’sSmells,”discussesthe“osmocosm,”thevastuniverseofscentsthatwaftfromourfeet,afieldofflowers,andevenspaceitself. Readhowournosestellusabouttheworld Readhowournosestellusabouttheworld Lovestinks Feelingattractedtosomeone?Itturnsoutyoureyesaren8217;ttheonlysensoryorganinvolved. Readmoreaboutthepotentialpowerofpheromones Readmoreaboutthepotentialpowerofpheromones Sniffingoutsmells AstudybyneurobiologistsatHarvardMedicalSchoolprovidesinsightsintothemysteryofscentanditsconnectionwiththebrain. Learnhowthebrainorganizesodorinformation Learnhowthebrainorganizesodorinformation   NarwhalsensesHarvardSchoolofDentalMedicineresearchersfoundnerves,tissues,andgenesinthenarwhaltuskpulpthatareknownforsensoryfunctionandthathelpconnectthetusktothebrain,addingtothewaysinwhichthenarwhalusesitstusk.   Tastytreats Thesenseoftasteisbuiltintoourgenes,unlikerecognizingsmellswhichislearned.Thereceptorsforsweet,salty,sour,bitter,andumamiareatworkeveninnewborns. LearnhowtasteworksfromHarvardOnline8217;sLabXchange Howthebraincombinestasteandsmell ClicktoPlayVideo Howdoesflorwork? DuringtheHarvardHorizonstalksandonthe“Veritalk”podcast,HarvardalumJessKanwalexplainsthatourbrain’sabilitytocombinetasteandsmellisjustoneexampleofhowweareabletomixandmatchsenses—withveryinterestingresults. Wheredoyoulieonthetastespectrum? Researchshowsthatabout25%ofthepopulationisextremelysensitivetobittertastes,andaboutthesamepercentecanbarelynoticethem. Readaboutsuper-tastersandnon-tasters Readaboutsuper-tastersandnon-tasters Whattotalkaboutwhenyoutalkabouttastes Insteadoflookingforhintsofmelon,expertssayit8217;sbettertomoveawayfromtheestablishedlexiconandfindyourownwordsforthethingsyou8217;retasting. 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